740182640 has 20 divisors (see below), whose sum is σ = 1720924824. Its totient is φ = 296073024.

The previous prime is 740182627. The next prime is 740182643. The reversal of 740182640 is 46281047.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 740182597 and 740182606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740182643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4626062 + ... + 4626221.

Almost surely, 2^740182640 is an apocalyptic number.

It is an amenable number.

740182640 is an abundant number, since it is smaller than the sum of its proper divisors (980742184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

740182640 is a wasteful number, since it uses less digits than its factorization.

740182640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9252296 (or 9252290 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 740182640 is about 27206.2978003256. The cubic root of 740182640 is about 904.5785773323.

The spelling of 740182640 in words is "seven hundred forty million, one hundred eighty-two thousand, six hundred forty".